TCS® Tightness Control System has been developed in 1982, especially for operation at Frankfurt Airport and is now proven at many airports worldwide.

TCS® is compliant to the standards of JIG Joint Inspection Group and EI, being followed at the majority of airports on a global basis. The JIG Standards for Aviation Fuel Quality Control and operating Procedures include internationally agreed procedures for handling aviation fuel at airports and upstream aviation fuel facilities. The EI Energy Institute is the professional body for the energy industry, delivering good practice and professionalism across the depth and breadth of the sector with globally approved standards.